EP 4262067 A3 20231101 - ELECTRIC COMPONENT WITH RESIN DAM FOR CONDUCTIVE WINDING SLOT
Title (en)
ELECTRIC COMPONENT WITH RESIN DAM FOR CONDUCTIVE WINDING SLOT
Title (de)
ELEKTRISCHES BAUELEMENT MIT HARZSPERRE FÜR NUTSCHLITZ
Title (fr)
COMPOSANT ÉLECTRIQUE AVEC BARRAGE EN RÉSINE POUR FENTE D'ENROULEMENT CONDUCTRICE
Publication
Application
Priority
US 202217659097 A 20220413
Abstract (en)
An electric component (102) for an electric machine (100) includes a body (112) having slots (120) defined therein, and a conductive winding (118) extending out of axial end(s) (130, 132) of the slot(s) (120). The electric component (102) may include any electric machine component (100) having conductive windings (118), e.g., a stator (106) for a generator (104). The electric component (102) includes a resin dam (160) around the conductive winding (118) at axial end(s) (130, 132) of the slot(s). The resin dam (160) blocks liquid communication through at least a space (162) between the conductive winding (118) and an inner surface (164) of the slot(s) (120), during manufacture. The electric component (102) also includes a (solidified) insulating resin (170) in the slot(s) (120) and against the resin dam(s) (160) at the axial end(s) (130, 132) of the slot(s) (120). Any number of the conductive windings (118) and slots (120) may include a resin dam (160), e.g., one, some or all. The resin dams (160) ensure complete filling of the slots (120) and encapsulation of the conductive windings (118).
IPC 8 full level
H02K 15/12 (2006.01); H02K 1/16 (2006.01); H02K 1/26 (2006.01)
CPC (source: CN EP US)
H02K 3/12 (2013.01 - CN); H02K 3/30 (2013.01 - US); H02K 3/345 (2013.01 - US); H02K 3/38 (2013.01 - CN); H02K 3/50 (2013.01 - CN); H02K 15/10 (2013.01 - US); H02K 15/12 (2013.01 - EP); H02K 1/16 (2013.01 - EP); H02K 1/26 (2013.01 - EP); H02K 2213/03 (2013.01 - CN)
Citation (search report)
- [XY] US 2017005537 A1 20170105 - MATAHIRA HIROSHI [JP], et al
- [XY] JP S55125049 U 19800904
- [X] JP S563557 A 19810114 - TOKYO SHIBAURA ELECTRIC CO
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4262067 A2 20231018; EP 4262067 A3 20231101; CN 116961295 A 20231027; JP 2023156999 A 20231025; US 2023336045 A1 20231019
DOCDB simple family (application)
EP 23167176 A 20230406; CN 202310383353 A 20230412; JP 2023061213 A 20230405; US 202217659097 A 20220413